Color Identity: G

Initial Card State
- Early Harvest in hand.
- Spellweaver Helix and Emeritus of Abundance // Regrowth on the battlefield (Emeritus of Abundance // Regrowth without summoning sickness).
- Regrowth and Extra Combat Sorcery in exile (exiled by Spellweaver Helix).
Easy Prerequisites
- You control at least five basic lands.
Notable Prerequisites
- You control at least eight lands.
- An opponent cannot kill Emeritus of Abundance in combat.
Mana Needed
- ({1} magic symbol)
({G} magic symbol)
({G} magic symbol)
available.
Steps
- Cast Early Harvest by paying its mana cost, untapping at least five basic lands.
- Cast a copy of Regrowth from exile by paying ({1} magic symbol)
({G} magic symbol)
, targeting Early Harvest. - Spellweaver Helix's last ability triggers, allowing you to cast the Extra Combat Sorcery, giving you an additional combat phase and an additional main phase this turn.
- Resolve the copy of Regrowth, returning Early Harvest from your graveyard to your hand.
- Declare Emeritus of Abundance as an attacker.
- When Emeritus of Abundance attacks, it triggers, becoming prepared.
- Repeat each main phase.
Notes
- Note that this does not work with cards that care about the "first postcombat main phase" or similar, such as World at War.
Results
- Infinite combat phases.
- Infinite magecraft triggers.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).